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  4. Reading EXPLAIN ANALYZE

Part 04 · Query Processing and Optimization

Reading EXPLAIN ANALYZE

EXPLAINANALYZEBUFFERSEstimated vs actual

Read a plan like an engineer: the tree from the inside out, estimated vs actual rows, loops, buffers hit and read, and where the time really went.

⏱ 6 min · Station 33 of 123

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← Previous stopThe Cost-Based OptimizerNext stop →Why the Optimizer Picks a Wrong Plan
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